Problems at home. Am I wrong?

My husband and I are not getting along. At this point I'm not even sure I will be in the home tomorrow. There are a lot of things happen and I think i either have done no wrong or think that it should be handles differently on his part. Everyone I talk to agrees with me but they could also be biased (and they don't even know the half of it). I need some advice from some outside parties to make me either realize I am wrong, what I should do in the situation or how I can approach him. Example of today: he asked me the other day if he could lend his boss one of our tattoo machines. my answer was " i can order him one really cheap but i dont want to lend one to him" he said "i figured you would say that" i bought all the tattoo stuff while we were split up, before we were married. i gave him half when i ordered it but since it has gotten all put together again. he gave a bunch of the needles a while back without me knowing and when i found out i was pissed and he says he bought some more and put it with the stuff. today him and his boss came in after work and after about ten minutes i walked in there to see what they were doing. cris was sorting through what he could "loan" him. and started explaining to me that we dont use certain ones that he can. i said calmly "didnt we have a talk about this the other day" his boss got mad and walked out and told my husband "i dont deal with back talk from my ol lady and im not going to deal with it from yours" i dont see where i was wrong. i couldve waited til he had alreadty left with the stuff and been out the stuff or been worse and acted a fool. now his boss said he wont come here to pick him up anymore and i get the blame for it